Lag at around 48-55 mph [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Lag at around 48-55 mph


James Ket
10-13-2008, 05:18 PM
Hey guys,

I have noticed this for awhile, but was curious if this is a tuning issue with the transmission or what. As I am increasing speeds up to around 48 mph or so maybe a little higher, my transmission shifts and drops down to about 1500 RPM's, it then seems like it takes a long time to accelerate and seems to also take a lot of pedal pressure to get going after this. Is there something wrong with my transmission or is this normal?? Thanks.

Lastmike
10-17-2008, 03:01 AM
ecm is prolly holding back fuel while trans is downshifting out of overdrive. mine does it if i mash on the pedal while in OD. i have learned to use slower throttle inputs to avoid the delay.